Finding the Fourth Proportional to 10,574.56, 15,861.89 and 3,554.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,574.56 : 15,861.89 = 3,554.38 : x
2. Step 2: Convert to fraction form
   10,574.56/15,861.89 = 3,554.38/x
3. Step 3: Cross multiply
   10,574.56x = 15,861.89 × 3,554.38
4. Step 4: Simplify right side
   10,574.56x = 56,379,184.58
5. Step 5: Solve for x
   x = 56,379,184.58/10,574.56
6. Step 6: Final answer
   x = 5,331.59